Flexo Printing

Flexo printing is a widely-used printing technique in the packaging industry. It utilizes relief elements on a flexible printing plate or cylinder to transfer the ink to the substrate. It is essentially a modern letterpress.

https://www.integratedtesting.org/documents/147354/601833/Flexo1.png/1e31b0ec-6cfc-4251-9881-c1dd51b394c8?t=1585730103000
Schematic of the Flexo printing process and printing unit of the C600

Key features

  • Relief elements on a flexible printing plate can print on nearly any type of substrate
  • High variety of low viscosity inks can be used (UV, solvent, waterbased etc.)
  • Anilox roller made of chrome/ceramic
  • Web speed ≤ 80 m/min
  • Mass-printing technique
  • Resolution ≥ 150 dpi, ≤ 20μm
  • Film thickness 0.1 – 3 μm
https://www.integratedtesting.org/documents/147354/601833/Flexo+Printed+Examples.png/2ef80897-ae37-4006-95dd-e3f063f26df2?t=1585730501000
Flexographic printed silver electrodes and test structures. 3-D image to determine layer-thickness (~100 nm for the printed Ag structures)
Dr. Jakob Heier

Dr. Jakob Heier
Group leader

Telefon: +41 58 765 4356
jakob.heier@empa.ch